一种锌冶炼焙烧炉焖炉的方法

By adjusting the material composition and temperature inside the zinc smelting roasting furnace and adopting a suitable desulfurization method, the problem of unstable furnace conditions during the furnace shutdown period was solved, and furnace condition stability and energy consumption reduction were achieved during short-term shutdowns.

CN117987639BActive Publication Date: 2026-07-17HENAN YUGUANG ZINC IND

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
HENAN YUGUANG ZINC IND
Filing Date
2024-01-05
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

In the zinc smelting process, the furnace shut-down method during short-term shutdowns of the roasting furnace leads to unstable furnace conditions, affecting the furnace start-up time and energy consumption. Existing technologies require intermittent large-volume blasting for heating, resulting in long production recovery times.

Method used

By finely adjusting the material composition and temperature inside the roasting furnace, and adopting a one-step or intermittent desulfurization method, the initial temperature and air volume of the furnace are controlled to avoid lead silicate bonding points, ensuring stable furnace conditions and reducing heat loss.

Benefits of technology

This ensures that the calcining furnace operates normally during short-term shutdowns, shortens the start-up and heating time, reduces energy consumption, and provides effective maintenance time guarantees.

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Abstract

本发明属于有色金属冶炼技术领域,具体涉及一种锌冶炼焙烧炉焖炉的方法。本发明结合焙烧炉焖炉时降温速度和计划维修停炉时长,依据冶金原理中焙烧炉炉渣粘结的特性,在停炉12小时前调整入炉锌精矿成分:硅含量小于3.5%,铅含量小于1.5%。并根据计划停炉时长选择使用一步脱硫或间断脱硫的方式,调整焖炉初始温度,有效避开焙烧炉粘结温度点,既避免焙烧炉出现烧结情况,又为设备检修提供了时间保障。应用本发明不增加任何新费用,工艺指标易控制,且不改变原有工艺流程,可有效减少焙烧炉热量损失,降低柴油消耗;同时有效降低了焙砂消耗,实现了锌冶炼焙烧炉环保停炉。
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